Keegan Allen recently called the flashback scene “heartbreaking,” so we decided to ask Pretty Little Liars showrunner Marlene about it at the Paley Center for Media's Evening With Pretty Little Liars event in Beverly Hills Monday night (June 10).

“There is an Ali and Toby flashback,” Marlene told Wetpaint Entertainment. “There was an episode we had where we saw Alison say to Toby, ‘I bet you wish you would have kissed me when you could,’ and in the Season 4 premiere, you’re going to see the opportunity he has to kiss her in the flashback.”

“And in that flashback, we also meet his mother,” Marlene added. “So it’s really exciting for us whenever we get to meet new characters.”

We knew we’d meet Toby’s mom, Marion Cavanaugh, in the Season 4 premiere, but now we know she’ll be joining Toby and Ali in a flashback. Keegan described the scene as “intense,” and according to new information from Marlene, this will ultimately lead him on a “surprising and emotional” journey through his past in the first half of the season.

What do you think PLL fans? Are you excited for to find out more about Toby and Marion in Season 4? Sound off in the comments!